OKLAHOMA CITY
(CBSDFW.COM/AP) – The man who gunned down a Southwest Airlines employee outside of
Oklahoma City’s airport likely killed the victim in retaliation for
circumstances that led to the 45-year-old attacker leaving his job with the
airline last year, police said Wednesday.

Lloyd Dean Buie killed
52-year-old Michael Winchester on Tuesday as Winchester was leaving work for
the day and walking to an employee parking lot, Capt. Paco Balderrama said at a
news conference. Buie fired the shot from the fourth floor of a parking garage
when Winchester was about 50 yards away, he said. Buie was later found dead in
his pickup truck in the garage.

Buie resigned from Southwest
Airlines in April 2015. According to a Southwest Airlines spokesperson, the
former ramp agent was exhibiting signs of being under the influence of alcohol
while on the job. The airline requested that he be tested, but Buie instead
declined and resigned.

Balderrama said that Winchester
was not Buie’s immediate supervisor, but the details surrounding Buie’s
resignation were the reason behind the attack.

Winchester, whose address is
listed as Washington, Oklahoma, about 35 miles south of the airport, was a
former University of Oklahoma football player whose son, James, is a
long-snapper for the Kansas City Chiefs. The team tweeted Tuesday
night: “Our love and support is with James and the entire Winchester family.”

The 1:00 p.m. shooting set off a
scramble at Will Rogers World Airport, with police immediately closing the
sprawling complex and asking passengers inside to seek cover. They diverted
incoming flights and refused to give already-loaded aircraft permission to
leave. There were concerns that the gunman might have entered the terminal and
mingled among passengers or employees.

Police found Buie’s red pickup
truck in the parking garage about three hours after the shooting. They used a
robot to determine that he was dead inside before giving the all-clear.

The attack led to the
cancellation of 25 flights. Normal airport operations resumed Wednesday.

The airport handles between 7,000
and 8,000 passengers daily for Alaska, Delta, Southwest and United airlines,
and has a separate terminal that serves as a transfer center for federal
inmates. A jet carrying inmates to the transfer site was allowed to land while
the rest of the airport was shuttered.

Michael Winchester was a punter
on the University of Oklahoma’s 1985 national championship team.

“Our hearts are truly heavy for
the entire Winchester Family. Mike was a former Sooner student athlete as was
his son James/daughter Carolyn,” the school’s athletic director, Joe
Castiglione, tweeted Tuesday afternoon. He added “daughter Becca was also a
student athlete. Please keep this beautiful family in your prayers” in a later
tweet.